The phrase "are largely volatile" is correct and usable in written English.
It can be used to describe something that is mostly unstable or subject to rapid change, often in contexts related to finance, markets, or emotions.
Example: "The stock prices of tech companies are largely volatile, making it difficult for investors to predict future trends."
Alternatives: "are mostly unstable" or "tend to fluctuate significantly."
The arrangement allows the BBC to be better protected from the economic downturn than most commercial broadcasters, which are largely dependent on volatile advertising revenue.
Although lunar volatiles are known to be present near the poles of the Moon, the three dimensional distribution and physical characteristics of lunar polar volatiles are largely unknown.
While initial reports indicated that NESTT provides TNT vapor at approximately 8.6 ppb at 25°C [27], more recent analysis indicates the NESTT volatiles are largely a mixture formed of the TNT breakdown products 2,4- and 2,6-dinitrotoluene, with only a minor portion being TNT [28].
The two different configurations are largely determined by the gas-phase combustion of volatile pyrolysis products.
They took a survey of the bacterial DNA in each paste, and of volatile fatty acids, a family of pungent chemicals that are largely responsible for the smell.
Whilst herbivore-induced plant volatile blends appeared to reduce the attractiveness of host plants to herbivores, the volatiles that are key in this process and particularly the way in which deterrence is coded in the olfactory system are largely unknown.
Oral malodour, also known as halitosis or bad breath, is largely caused by volatile sulphur compounds [VSCs], which are produced due to bacterial degradation of proteins present in the oral cavity [5].
In other words, the biosynthesis pathway for this floral volatile is largely unknown.
Refining is largely seen as a more volatile operation, one that also faces pressure from competitors in China and India.
